Mathematics, 10.10.2019 02:10, tay9625
Awater trough is 7 feet long, and its cross section is an equilateral triangle with sides 4 feet long. water is pumped into the trough at a rate of 4 cubic feet per second. how fast is the water level rising when the depth of the water is 1/2 foot?
( hint: first, what is the height h of an equilateral triangle of side length s? next, what is the area of an equilateral triangle in terms of the side length s? then write the area in terms of h. the volume of the water in the trough at time t is the product of the cross-sectional area with water and the length of the trough. )
a) what is the height h of an equilateral triangle of side length s?
b) the water level is rising at a rate of
Answers: 3
Mathematics, 21.06.2019 17:30, edfwef5024
Marco has $38.43 dollars in his checking account. his checking account is linked to his amazon music account so he can buy music. the songs he purchases cost $1.29. part 1: write an expression to describe the amount of money in his checking account in relationship to the number of songs he purchases. part 2: describe what the variable represents in this situation.
Answers: 2
Mathematics, 21.06.2019 19:30, Animallover100
Write the sine and cosine values of a, b, respectively, in the figure for (1) and (2) + explanation.
Answers: 1
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